[Bug 1797310] [NEW] ubiquity installer crashes trying to access optical drive during flash drive install

[Nick]

Public bug reported:

Installation is nearly finished and then for some reason the installer
tries to access the optical drive to load extra files and fails. Well of
course, I'm installing from the USB Flash Drive and there is no disc in
the drive. This has left me stuck with the live version.

1.) lsb_release -rd: Ubuntu 18.04 LTS
2.) apt-cache policy ubiquity: 
[code]ubiquity:
  Installed: 18.04.14
  Candidate: 18.04.14.8
  Version table:
     18.04.14.8 500
        500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
 *** 18.04.14 500
        500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status[/code]
3.) EXPECTATION: I expected the installer to complete successfully.
4.) WHAT HAPPENED: The installer crashed just before the end, when it tried to access the optical drive, despite installing from a USB flash drive.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CasperVersion: 1.394
Date: Thu Oct 11 18:44:44 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-budgie.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu-Budgie 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic ubiquity-18.04.14 ubuntu-budgie

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https://bugs.launchpad.net/bugs/1797310

Title:
  ubiquity installer crashes trying to access optical drive during flash
  drive install

Status in ubiquity package in Ubuntu:
  New

Bug description:
  Installation is nearly finished and then for some reason the installer
  tries to access the optical drive to load extra files and fails. Well
  of course, I'm installing from the USB Flash Drive and there is no
  disc in the drive. This has left me stuck with the live version.

  1.) lsb_release -rd: Ubuntu 18.04 LTS
  2.) apt-cache policy ubiquity: 
  [code]ubiquity:
    Installed: 18.04.14
    Candidate: 18.04.14.8
    Version table:
       18.04.14.8 500
          500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
   *** 18.04.14 500
          500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages
          100 /var/lib/dpkg/status[/code]
  3.) EXPECTATION: I expected the installer to complete successfully.
  4.) WHAT HAPPENED: The installer crashed just before the end, when it tried to access the optical drive, despite installing from a USB flash drive.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubiquity 18.04.14
  ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
  Uname: Linux 4.15.0-20-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  CasperVersion: 1.394
  Date: Thu Oct 11 18:44:44 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-budgie.seed boot=casper quiet splash ---
  LiveMediaBuild: Ubuntu-Budgie 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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